An internship is the cheapest way an employer can test you, and the cheapest way you can test an industry. Handled well, it compresses two years of career guesswork into ten weeks and often ends in a job offer before your final year begins. Handled passively, it is ten weeks of formatting spreadsheets. The difference is almost entirely in the preparation and in what you do during the first fortnight.
Know which type of placement you are applying for
- Summer internship: eight to twelve weeks, paid, structured, usually the main pipeline into a graduate scheme.
- Placement year: nine to twelve months inside a degree, paid, with real project ownership.
- Graduate trainee scheme: one to three years of rotations after graduation, permanent contract from day one.
- Research placement or fellowship: funded lab or policy work, the natural bridge to a funded postgraduate degree.
- Insight or spring week: two to five days for first-year students, low commitment and a fast-track to next year’s internship.
Unpaid internships in commercial organisations are, in many countries, either illegal or a strong signal of a poorly run programme. Treat “exposure” as a red flag, not a benefit.
The application calendar nobody tells students about
Competitive summer internships open nine to twelve months ahead and are frequently filled on a rolling basis, meaning the last applications are assessed against a nearly full cohort. A workable calendar:
- August–October: large employers open applications. Apply in the first six weeks.
- October–December: online tests and video interviews.
- December–February: assessment centres and final interviews.
- February–April: offers, plus a second wave from mid-sized employers.
- April–June: late openings, start-ups, research placements and public sector schemes.
If you are reading this outside that window, target the second and third waves — they are less crowded and often give interns more responsibility.
Where to look beyond the obvious job boards
Your university careers service and departmental mailing lists carry vacancies that never reach public boards. Beyond that, check employer career pages directly, professional bodies in your field, government-funded schemes, university research groups seeking summer assistants, and alumni working at companies you admire. A short, specific message to an alumnus asking whether their team takes interns has a far better hit rate than a hundredth application through a portal.
The application itself: what actually gets scored
Most large employers screen in three layers: an automated CV or form filter, an online aptitude or situational judgement test, and a recorded video interview. Each is mechanical, and each is learnable.
- CV: one page, reverse chronological, with the exact keywords from the job description. Our ATS resume guide explains how the parsers read it.
- Motivation question: name the specific team, product or research area, and a reason tied to something you have actually done.
- Aptitude tests: practise the specific publisher’s format; speed comes from familiarity with the question templates, not from raw ability.
- Situational judgement: answer as the company’s published values would, not as your instincts would.
- Video interview: record in a quiet room at eye level, answer in structured form and stop cleanly rather than trailing off.
Passing the assessment centre
Assessment centres score four things: analytical work under time pressure, group collaboration, a presentation or case, and a competency interview. Assessors carry a rubric, and in the group exercise they are watching whether you move the group toward a decision without steamrolling it. Bringing quiet participants into the conversation scores; dominating does not. Manage the clock out loud — “we have ten minutes left, shall we agree the recommendation?” is one of the highest-scoring sentences you can say.
What to check before you accept
Ask for the pay rate and payment schedule in writing, the working hours, whether travel or accommodation support exists, who your named supervisor will be, and what project you will own. Confirm your legal working rights if you are an international student — most study visas cap working hours, and rules differ during term and vacation. Verify limits with the official immigration authority for your country, for example GOV.UK’s student visa work rules, before you sign anything.
The first two weeks decide the outcome
Do four things immediately: ask your manager what a successful placement looks like in measurable terms, write those criteria down, book a short midpoint review, and keep a weekly log of what you delivered with numbers attached. That log becomes your conversion case, your CV bullets and your reference brief.
Then behave like a junior colleague rather than a student: reply promptly, flag blockers early, finish what you start, and volunteer once for something slightly beyond your comfort zone. Interns are converted because a manager can imagine the team without a gap, not because they were the smartest person in the cohort.
Converting a placement into an offer
Two weeks before the end, ask directly: “I would like to return full time — what would you need to see, and what is the process?” Deliver a short end-of-placement summary of what you shipped and its impact. Ask your supervisor whether they would act as a reference, and connect with everyone you worked with while your name is still fresh. If conversion is not available, ask for a written reference and a specific recommendation of two people to speak to. Most second internships come from the first one.
Frequently asked questions
Do internships count as real work experience?
Yes, provided you describe outcomes rather than duties. “Built a reporting workflow that cut a weekly task from four hours to twenty minutes” is experience; “assisted the team” is not.
Can graduates still apply for internships?
Often yes, though many schemes restrict eligibility to a window after graduation. Recent graduates are usually better served by graduate trainee schemes.
How many applications are realistic?
Fifteen to twenty-five well-targeted applications across two waves is a normal number for a competitive field.